package com.cencat.order.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.cencat.order.dto.DeliveryDTO;
import com.cencat.order.entity.Delivery;
import com.cencat.order.mapper.DeliveryMapper;
import com.cencat.order.service.DeliveryService;
import com.cencat.order.vo.DeliveryVO;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * 配送跟踪业务逻辑实现类
 * 
 * @author cencat
 * @date 2024-01-20
 */
@Slf4j
@Service
@RequiredArgsConstructor
public class DeliveryServiceImpl extends ServiceImpl<DeliveryMapper, Delivery> implements DeliveryService {

    private final DeliveryMapper deliveryMapper;

    @Override
    public IPage<DeliveryVO> getDeliveryPage(Page<DeliveryVO> page, String deliveryCode, Long routeId,
                                            Long driverId, Long orderId, Integer deliveryStatus,
                                            LocalDateTime startTime, LocalDateTime endTime) {
        log.info("分页查询配送列表，参数：deliveryCode={}, routeId={}, driverId={}, orderId={}, deliveryStatus={}, startTime={}, endTime={}",
                deliveryCode, routeId, driverId, orderId, deliveryStatus, startTime, endTime);
        
        IPage<DeliveryVO> result = deliveryMapper.selectDeliveryPage(page, deliveryCode, routeId, driverId,
                orderId, deliveryStatus, startTime, endTime);
        
        log.info("分页查询配送列表完成，总数：{}", result.getTotal());
        return result;
    }

    @Override
    public DeliveryVO getByDeliveryCode(String deliveryCode) {
        log.info("根据配送编号查询配送信息，deliveryCode={}", deliveryCode);
        
        if (!StringUtils.hasText(deliveryCode)) {
            log.warn("配送编号不能为空");
            return null;
        }
        
        DeliveryVO result = deliveryMapper.selectByDeliveryCode(deliveryCode);
        log.info("根据配送编号查询配送信息完成，result={}", result != null ? "找到" : "未找到");
        return result;
    }

    @Override
    public List<DeliveryVO> getByRouteId(Long routeId, Integer deliveryStatus, LocalDateTime startTime, LocalDateTime endTime) {
        log.info("根据路线ID查询配送列表，routeId={}, deliveryStatus={}, startTime={}, endTime={}",
                routeId, deliveryStatus, startTime, endTime);
        
        if (routeId == null) {
            log.warn("路线ID不能为空");
            return List.of();
        }
        
        List<DeliveryVO> result = deliveryMapper.selectByRouteId(routeId, deliveryStatus, startTime, endTime);
        log.info("根据路线ID查询配送列表完成，数量：{}", result.size());
        return result;
    }

    @Override
    public List<DeliveryVO> getByDriverId(Long driverId, Integer deliveryStatus, LocalDateTime startTime, LocalDateTime endTime) {
        log.info("根据司机ID查询配送列表，driverId={}, deliveryStatus={}, startTime={}, endTime={}",
                driverId, deliveryStatus, startTime, endTime);
        
        if (driverId == null) {
            log.warn("司机ID不能为空");
            return List.of();
        }
        
        List<DeliveryVO> result = deliveryMapper.selectByDriverId(driverId, deliveryStatus, startTime, endTime);
        log.info("根据司机ID查询配送列表完成，数量：{}", result.size());
        return result;
    }

    @Override
    public List<DeliveryVO> getByOrderId(Long orderId, Integer deliveryStatus) {
        log.info("根据订单ID查询配送列表，orderId={}, deliveryStatus={}", orderId, deliveryStatus);
        
        if (orderId == null) {
            log.warn("订单ID不能为空");
            return List.of();
        }
        
        List<DeliveryVO> result = deliveryMapper.selectByOrderId(orderId, deliveryStatus);
        log.info("根据订单ID查询配送列表完成，数量：{}", result.size());
        return result;
    }

    @Override
    public List<DeliveryVO> getByStatus(Integer deliveryStatus, LocalDateTime startTime, LocalDateTime endTime, Integer limit) {
        log.info("根据状态查询配送列表，deliveryStatus={}, startTime={}, endTime={}, limit={}",
                deliveryStatus, startTime, endTime, limit);
        
        List<DeliveryVO> result = deliveryMapper.selectByStatus(deliveryStatus, startTime, endTime, limit);
        log.info("根据状态查询配送列表完成，数量：{}", result.size());
        return result;
    }

    @Override
    public Map<String, Object> getDeliveryStatistics(Long routeId, Long driverId, Integer deliveryStatus,
                                                    LocalDateTime startTime, LocalDateTime endTime) {
        log.info("查询配送统计信息，routeId={}, driverId={}, deliveryStatus={}, startTime={}, endTime={}",
                routeId, driverId, deliveryStatus, startTime, endTime);
        
        Map<String, Object> result = deliveryMapper.selectDeliveryStatistics(routeId, driverId, deliveryStatus,
                startTime, endTime);
        
        log.info("查询配送统计信息完成");
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean createDelivery(DeliveryDTO deliveryDTO) {
        log.info("创建配送信息，deliveryDTO={}", deliveryDTO);
        
        if (deliveryDTO == null) {
            log.warn("配送信息不能为空");
            return false;
        }
        
        // 检查配送编号是否已存在
        if (StringUtils.hasText(deliveryDTO.getDeliveryCode())) {
            DeliveryVO existingDelivery = deliveryMapper.selectByDeliveryCode(deliveryDTO.getDeliveryCode());
            if (existingDelivery != null) {
                log.warn("配送编号已存在：{}", deliveryDTO.getDeliveryCode());
                return false;
            }
        }
        
        Delivery delivery = new Delivery();
        BeanUtils.copyProperties(deliveryDTO, delivery);
        delivery.setCreateTime(LocalDateTime.now());
        delivery.setUpdateTime(LocalDateTime.now());
        delivery.setDeleted(false);
        
        boolean result = save(delivery);
        log.info("创建配送信息完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean updateDelivery(Long deliveryId, DeliveryDTO deliveryDTO) {
        log.info("更新配送信息，deliveryId={}, deliveryDTO={}", deliveryId, deliveryDTO);
        
        if (deliveryId == null || deliveryDTO == null) {
            log.warn("配送ID和配送信息不能为空");
            return false;
        }
        
        Delivery existingDelivery = getById(deliveryId);
        if (existingDelivery == null) {
            log.warn("配送不存在：{}", deliveryId);
            return false;
        }
        
        Delivery delivery = new Delivery();
        BeanUtils.copyProperties(deliveryDTO, delivery);
        delivery.setId(deliveryId);
        delivery.setUpdateTime(LocalDateTime.now());
        
        boolean result = updateById(delivery);
        log.info("更新配送信息完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean startDelivery(Long deliveryId, LocalDateTime startTime, String startLocation, String startRemark) {
        log.info("开始配送，deliveryId={}, startTime={}, startLocation={}, startRemark={}",
                deliveryId, startTime, startLocation, startRemark);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return false;
        }
        
        Delivery delivery = getById(deliveryId);
        if (delivery == null) {
            log.warn("配送不存在：{}", deliveryId);
            return false;
        }
        
        delivery.setDeliveryStatus(2); // 2表示配送中
        delivery.setStartTime(startTime != null ? startTime : LocalDateTime.now());
        delivery.setStartLocation(startLocation);
        delivery.setStartRemark(startRemark);
        delivery.setUpdateTime(LocalDateTime.now());
        
        boolean result = updateById(delivery);
        log.info("开始配送完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean arrivePickupPoint(Long deliveryId, LocalDateTime arriveTime, String pickupLocation, String pickupRemark) {
        log.info("到达取货点，deliveryId={}, arriveTime={}, pickupLocation={}, pickupRemark={}",
                deliveryId, arriveTime, pickupLocation, pickupRemark);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return false;
        }
        
        boolean result = deliveryMapper.updateArrivePickupPoint(deliveryId, arriveTime, pickupLocation, pickupRemark) > 0;
        log.info("到达取货点完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean pickupGoods(Long deliveryId, LocalDateTime pickupTime, String goodsInfo, String pickupPersonName) {
        log.info("取货，deliveryId={}, pickupTime={}, goodsInfo={}, pickupPersonName={}",
                deliveryId, pickupTime, goodsInfo, pickupPersonName);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return false;
        }
        
        boolean result = deliveryMapper.updatePickupGoods(deliveryId, pickupTime, goodsInfo, pickupPersonName) > 0;
        log.info("取货完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean arriveDeliveryPoint(Long deliveryId, LocalDateTime arriveTime, String deliveryLocation, String arriveRemark) {
        log.info("到达配送点，deliveryId={}, arriveTime={}, deliveryLocation={}, arriveRemark={}",
                deliveryId, arriveTime, deliveryLocation, arriveRemark);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return false;
        }
        
        boolean result = deliveryMapper.updateArriveDeliveryPoint(deliveryId, arriveTime, deliveryLocation, arriveRemark) > 0;
        log.info("到达配送点完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean completeDelivery(Long deliveryId, LocalDateTime completeTime, String recipientName,
                                   String recipientPhone, String signatureInfo) {
        log.info("完成配送，deliveryId={}, completeTime={}, recipientName={}, recipientPhone={}, signatureInfo={}",
                deliveryId, completeTime, recipientName, recipientPhone, signatureInfo);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return false;
        }
        
        Delivery delivery = getById(deliveryId);
        if (delivery == null) {
            log.warn("配送不存在：{}", deliveryId);
            return false;
        }
        
        delivery.setDeliveryStatus(4); // 4表示已完成
        delivery.setCompleteTime(completeTime != null ? completeTime : LocalDateTime.now());
        delivery.setRecipientName(recipientName);
        delivery.setRecipientPhone(recipientPhone);
        delivery.setSignatureInfo(signatureInfo);
        delivery.setUpdateTime(LocalDateTime.now());
        
        boolean result = updateById(delivery);
        log.info("完成配送完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean updateDeliveryStatus(Long deliveryId, Integer deliveryStatus, String statusRemark) {
        log.info("更新配送状态，deliveryId={}, deliveryStatus={}, statusRemark={}",
                deliveryId, deliveryStatus, statusRemark);
        
        if (deliveryId == null || deliveryStatus == null) {
            log.warn("配送ID和状态不能为空");
            return false;
        }
        
        boolean result = deliveryMapper.updateDeliveryStatus(deliveryId, deliveryStatus, statusRemark) > 0;
        log.info("更新配送状态完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean updateDeliveryLocation(Long deliveryId, BigDecimal longitude, BigDecimal latitude,
                                         String locationAddress, LocalDateTime locationTime) {
        log.info("更新配送位置，deliveryId={}, longitude={}, latitude={}, locationAddress={}, locationTime={}",
                deliveryId, longitude, latitude, locationAddress, locationTime);
        
        if (deliveryId == null || longitude == null || latitude == null) {
            log.warn("配送ID和位置信息不能为空");
            return false;
        }
        
        boolean result = deliveryMapper.updateDeliveryLocation(deliveryId, longitude, latitude,
                locationAddress, locationTime) > 0;
        log.info("更新配送位置完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean updateDeliveryTime(Long deliveryId, LocalDateTime estimatedTime, LocalDateTime actualTime,
                                     String timeRemark) {
        log.info("更新配送时间，deliveryId={}, estimatedTime={}, actualTime={}, timeRemark={}",
                deliveryId, estimatedTime, actualTime, timeRemark);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return false;
        }
        
        boolean result = deliveryMapper.updateDeliveryTime(deliveryId, estimatedTime, actualTime, timeRemark) > 0;
        log.info("更新配送时间完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean updateDeliveryFee(Long deliveryId, BigDecimal deliveryFee, BigDecimal actualFee,
                                    String feeRemark) {
        log.info("更新配送费用，deliveryId={}, deliveryFee={}, actualFee={}, feeRemark={}",
                deliveryId, deliveryFee, actualFee, feeRemark);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return false;
        }
        
        boolean result = deliveryMapper.updateDeliveryFee(deliveryId, deliveryFee, actualFee, feeRemark) > 0;
        log.info("更新配送费用完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean recordDeliveryException(Long deliveryId, String exceptionType, String exceptionDescription,
                                          LocalDateTime exceptionTime, String handleSuggestion) {
        log.info("记录配送异常，deliveryId={}, exceptionType={}, exceptionDescription={}, exceptionTime={}, handleSuggestion={}",
                deliveryId, exceptionType, exceptionDescription, exceptionTime, handleSuggestion);
        
        if (deliveryId == null || !StringUtils.hasText(exceptionType)) {
            log.warn("配送ID和异常类型不能为空");
            return false;
        }
        
        boolean result = deliveryMapper.updateDeliveryException(deliveryId, exceptionType, exceptionDescription,
                exceptionTime, handleSuggestion) > 0;
        log.info("记录配送异常完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean recordDeliveryRating(Long deliveryId, Integer rating, String ratingComment,
                                       LocalDateTime ratingTime, Long raterId) {
        log.info("记录配送评价，deliveryId={}, rating={}, ratingComment={}, ratingTime={}, raterId={}",
                deliveryId, rating, ratingComment, ratingTime, raterId);
        
        if (deliveryId == null || rating == null) {
            log.warn("配送ID和评分不能为空");
            return false;
        }
        
        boolean result = deliveryMapper.updateDeliveryRating(deliveryId, rating, ratingComment,
                ratingTime, raterId) > 0;
        log.info("记录配送评价完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean batchUpdateDeliveryStatus(List<Long> deliveryIds, Integer deliveryStatus) {
        log.info("批量更新配送状态，deliveryIds={}, deliveryStatus={}", deliveryIds, deliveryStatus);
        
        if (deliveryIds == null || deliveryIds.isEmpty() || deliveryStatus == null) {
            log.warn("配送ID列表和状态不能为空");
            return false;
        }
        
        boolean result = deliveryMapper.batchUpdateDeliveryStatus(deliveryIds, deliveryStatus) > 0;
        log.info("批量更新配送状态完成，result={}", result);
        return result;
    }

    @Override
    public Map<String, Object> optimizeDeliveryRoute(Long deliveryId, Map<String, Object> optimizationParameters) {
        log.info("配送路线优化，deliveryId={}, optimizationParameters={}", deliveryId, optimizationParameters);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return Map.of("success", false, "message", "配送ID不能为空");
        }
        
        // 这里应该实现实际的路线优化算法
        Map<String, Object> result = Map.of(
                "success", true,
                "originalRoute", List.of("起点", "取货点", "配送点"),
                "optimizedRoute", List.of("起点", "优化取货点", "优化配送点"),
                "timeSaved", 15,
                "distanceSaved", 3.2,
                "costSaved", new BigDecimal("8.50")
        );
        
        log.info("配送路线优化完成");
        return result;
    }

    @Override
    public Map<String, Object> predictDeliveryTime(Long deliveryId, Map<String, Object> predictionFactors) {
        log.info("配送时效预测，deliveryId={}, predictionFactors={}", deliveryId, predictionFactors);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return Map.of("success", false, "message", "配送ID不能为空");
        }
        
        // 这里应该实现实际的时效预测算法
        Map<String, Object> result = Map.of(
                "success", true,
                "predictedTime", 45,
                "confidence", 85,
                "factors", Map.of(
                        "traffic", "中等",
                        "weather", "良好",
                        "distance", "12.5km"
                ),
                "riskLevel", "低"
        );
        
        log.info("配送时效预测完成");
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean softDeleteDelivery(Long deliveryId) {
        log.info("软删除配送信息，deliveryId={}", deliveryId);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return false;
        }
        
        Delivery delivery = new Delivery();
        delivery.setId(deliveryId);
        delivery.setDeleted(true);
        delivery.setUpdateTime(LocalDateTime.now());
        
        boolean result = updateById(delivery);
        log.info("软删除配送信息完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean batchSoftDeleteDeliveries(List<Long> deliveryIds) {
        log.info("批量软删除配送信息，deliveryIds={}", deliveryIds);
        
        if (deliveryIds == null || deliveryIds.isEmpty()) {
            log.warn("配送ID列表不能为空");
            return false;
        }
        
        List<Delivery> deliveries = deliveryIds.stream()
                .map(id -> {
                    Delivery delivery = new Delivery();
                    delivery.setId(id);
                    delivery.setDeleted(true);
                    delivery.setUpdateTime(LocalDateTime.now());
                    return delivery;
                })
                .collect(Collectors.toList());
        
        boolean result = updateBatchById(deliveries);
        log.info("批量软删除配送信息完成，result={}", result);
        return result;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public boolean restoreDelivery(Long deliveryId) {
        log.info("恢复已删除的配送信息，deliveryId={}", deliveryId);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return false;
        }
        
        Delivery delivery = new Delivery();
        delivery.setId(deliveryId);
        delivery.setDeleted(false);
        delivery.setUpdateTime(LocalDateTime.now());
        
        boolean result = updateById(delivery);
        log.info("恢复已删除的配送信息完成，result={}", result);
        return result;
    }

    @Override
    public List<Map<String, Object>> getDeliveryOperationLogs(Long deliveryId, LocalDateTime startTime,
                                                             LocalDateTime endTime, Integer limit) {
        log.info("查询配送操作日志，deliveryId={}, startTime={}, endTime={}, limit={}",
                deliveryId, startTime, endTime, limit);
        
        if (deliveryId == null) {
            log.warn("配送ID不能为空");
            return List.of();
        }
        
        List<Map<String, Object>> result = deliveryMapper.selectDeliveryOperationLogs(deliveryId, startTime, endTime, limit);
        log.info("查询配送操作日志完成，数量：{}", result.size());
        return result;
    }
}